WO1999002796A1 - Element composite et son procede de fabrication - Google Patents

Element composite et son procede de fabrication Download PDF

Info

Publication number
WO1999002796A1
WO1999002796A1 PCT/EP1998/004117 EP9804117W WO9902796A1 WO 1999002796 A1 WO1999002796 A1 WO 1999002796A1 EP 9804117 W EP9804117 W EP 9804117W WO 9902796 A1 WO9902796 A1 WO 9902796A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
concrete
adhesive
mortar
fresh
Prior art date
Application number
PCT/EP1998/004117
Other languages
German (de)
English (en)
Inventor
Peter Gisel
Original Assignee
Sika Ag, Vorm. Kaspar Winkler & Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sika Ag, Vorm. Kaspar Winkler & Co filed Critical Sika Ag, Vorm. Kaspar Winkler & Co
Priority to EP98939613A priority Critical patent/EP0994990A1/fr
Priority to JP50810399A priority patent/JP2002511910A/ja
Priority to CA002295561A priority patent/CA2295561A1/fr
Publication of WO1999002796A1 publication Critical patent/WO1999002796A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated

Definitions

  • the invention relates to a method for producing a composite element consisting of at least one layer of wood and a concrete or mortar layer connected to it, and a composite element produced by the method.
  • Wood-concrete composite constructions represent a mixed construction, in which the cross-sections of supporting components consist of the two different materials wood and concrete, which are usually flexibly connected to one another by mechanical connecting means.
  • the concrete is in the bending pressure zone and the wood in the bending tension zone of a bending support element. This means that the properties of the two building materials can be optimally used.
  • the strength and stiffness of the concrete are in Druckbean ⁇ spruchung greatest. If wood is used in the draft zone, there is no concrete in the draft zone in the usual reinforced concrete cross-sections, which, when torn, does not support and merely represents a load.
  • Characterized cross-sections can hen entste ⁇ which have a high stiffness with a comparatively low weight.
  • the load-bearing capacity of such constructions is, for example, roughly doubled in comparison with a pure wooden beam ceiling, the bending stiffness reaches three to four fold values.
  • the use of wood-concrete composite ceilings significantly reduces the resilience of the ceiling, which is often perceived as a nuisance with pure wooden ceilings.
  • the damping of vibrations in wood-concrete composite ceilings is much more pronounced than in wooden ceilings, so that it is much easier to carry out vibration tests for the serviceability limit state.
  • the soundproofing is also improved by applying a concrete slab to existing wooden beam ceilings. Because of the significantly higher mass of the concrete, the airborne sound transmission is reduced on the one hand, and the structure-borne noise transmission is reduced on the other hand by the greater damping values of the composite ceiling. After all, the concrete slab is effective in the event of fire
  • the bond between the wood layer and the concrete layer is achieved by means of reinforcement screws screwed into the wood layer and projecting therefrom.
  • a plastic film is first spread over the entire surface of a free surface of a wooden ceiling, which completely separates the concrete to be poured on later from the wooden surface, so that no moisture from the fresh concrete can get into the wood.
  • the reinforcement screws are screwed into the load-bearing wooden beams of the wooden ceiling, whereby part of the shaft length of the reinforcement screws remains protruding from the wooden beams.
  • the fresh concrete is then poured onto the wooden ceiling prepared in this way, so that after the concrete has hardened, a selective bond is formed between the wood layer and the concrete layer.
  • This process is perceived as disadvantageous in that the bond between the wood layer and the concrete layer does not take place over the entire surface.
  • the resilience of such a construction is considerably reduced compared to a full-surface composite.
  • the object of the invention is therefore to propose a method for producing a wood-concrete composite element that is simple to carry out and a full-surface bond between the wood layer and the Concrete layer guaranteed. Furthermore, the object is to provide a composite element produced by the method according to the invention, which has a higher load capacity than conventional composite elements.
  • the invention is based primarily on the idea that a full-area bond between the wood layer and the concrete layer can be achieved in the simplest way if the fresh concrete is poured directly onto the wood layer with the interposition of an adhesive layer.
  • an adhesive in paste-like consistency to form an adhesive layer is applied surface-wide on a free surface of the wooden layer that mortar poured onto the adhesive layer of hydraulic fresh concrete or fresh ⁇ and comprehensive form the concrete or mortar layer to this is distributed and that the adhesive layer and the concrete or mortar layer are brought to harden in a temporarily joint hardening phase, producing a large-area connection between the layers.
  • the adhesive is preferably applied to the wood surface in a layer thickness of 0.1 to 0.8 mm. Such a small layer thickness is already sufficient to ensure the necessary interlocking of the fresh concrete with the
  • the adhesive can be sprayed onto the wood surface, rolled on or filled, the latter preferably by means of a toothed spatula, which imparts a surface roughness to the adhesive layer that further supports the toothing effect.
  • a two-component adhesive from the group of epoxy resins or polyurethane resins is preferably used as the adhesive.
  • Such adhesives are sufficiently insensitive to water so that the adhesive layer is retained when the fresh concrete or fresh mortar is poured on.
  • the pasty adhesive should be sufficiently spreadable, but not too thin, so that it is not displaced from the wood surface when the fresh concrete or fresh mortar is being applied.
  • the adhesive should therefore have a viscosity of 20 to 600 Pa when it is applied to the wood surface and then when the fresh concrete or fresh mortar is applied. have s.
  • a preferred embodiment of the method provides that the concrete or mortar layer is preferably compacted by shaking before hardening.
  • a further increase in the strength and resilience of the composite element is achieved in that reinforcement material, such as structural steel or fiber material, is embedded in the concrete or mortar layer when the fresh concrete or fresh mortar is applied.
  • Layer of wood advantageously placed in a removable formwork for fresh concrete or fresh mortar or provided with such formwork.
  • the composite element according to the invention consists essentially of wood and concrete or cement mortar with at least one wood layer and a concrete or mortar layer and a thin-walled adhesive bridge arranged between the wood layer and the concrete or mortar layer made of a two-component synthetic resin adhesive.
  • the thin-walled adhesive bridge should have a wall thickness have from 0.1 to 0.8 mm and can consist of a two-component epoxy resin adhesive or a two-component polyurethane adhesive.
  • a reinforcement preferably made of structural steel or fiber material, can be embedded in the concrete or mortar layer.
  • empty pipes for the electrical and / or sanitary installation can be embedded in the concrete or mortar layer.
  • this is used for the production of prefabricated ceiling, floor or wall elements for buildings, in particular for prefabricated houses.
  • FIG. 1 shows a cross section through a composite element according to the invention.
  • FIG. 2 shows an enlarged section of the composite element according to FIG. 1 in the area of the adhesive bridge.
  • the composite element shown in the drawing essentially consists of a wood layer 12 and a concrete or mortar layer 14, which is connected to the wood layer 12 by means of an adhesive layer 16.
  • the adhesive 16 is sprayed onto the wooden surface in a pasty state, rolled on or filled and has a very small layer thickness in the range of about 0.5 mm.
  • the concrete or mortar layer 14 is poured onto the adhesive layer 16 as long as it has not yet hardened. As a result, as can be seen in particular from FIG. 2, coarser constituents of the concrete or mortar layer 14 penetrate into the adhesive layer 16 or result in a certain intermixing of the two layers, so that after the two layers have hardened, one over the entire layer Effective, adhesion-promoting interlocking results.
  • the invention relates to a method for producing a composite element consisting of at least one wood layer and a concrete or mortar layer connected to it, and a composite element produced by the method.
  • an adhesive 16 is applied to a free surface of the wood layer 12 in a pasty consistency to form an adhesive layer .
  • Hydraulic fresh concrete or fresh mortar is then poured onto the adhesive layer 16 and distributed over the entire area, forming the concrete or mortar layer 14.
  • the adhesive layer 16 and the concrete or mortar layer 14 are brought to harden in a temporarily common hardening phase, producing a large-area connection between the layers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)

Abstract

L'invention concerne un procédé pour la fabrication d'un élément composite constitué d'au moins une couche de bois à laquelle est liée une couche de béton ou de mortier, ainsi qu'un élément composite réalisé selon ce procédé. Dans le but d'obtenir une capacité de charge élevée de cet élément composite grâce à une adhérence, sur toute la surface, de la couche de béton ou de mortier sur la couche de bois, un adhésif (16) de consistance pâteuse est appliqué de manière à recouvrir la surface en formant une couche d'adhésif. Ensuite, du béton frais hydraulique ou du mortier frais hydraulique est coulé sur la couche d'adhésif (16) et est réparti sur celle-ci de manière à recouvrir la surface en formant la couche de béton ou de mortier (14). La couche d'adhésif (16) et la couche de béton ou de mortier (14) sont amenées à durcir, au cours d'une phase de durcissement commune transitoire, pour produire une liaison inter-couches sur une grande surface.
PCT/EP1998/004117 1997-07-08 1998-07-03 Element composite et son procede de fabrication WO1999002796A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98939613A EP0994990A1 (fr) 1997-07-08 1998-07-03 Element composite et son procede de fabrication
JP50810399A JP2002511910A (ja) 1997-07-08 1998-07-03 結合要素及びその製造方法
CA002295561A CA2295561A1 (fr) 1997-07-08 1998-07-03 Element composite et son procede de fabrication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997129058 DE19729058A1 (de) 1997-07-08 1997-07-08 Verbundelement und Verfahren zu seiner Herstellung
DE19729058.2 1997-07-08

Publications (1)

Publication Number Publication Date
WO1999002796A1 true WO1999002796A1 (fr) 1999-01-21

Family

ID=7834957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/004117 WO1999002796A1 (fr) 1997-07-08 1998-07-03 Element composite et son procede de fabrication

Country Status (5)

Country Link
EP (1) EP0994990A1 (fr)
JP (1) JP2002511910A (fr)
CA (1) CA2295561A1 (fr)
DE (1) DE19729058A1 (fr)
WO (1) WO1999002796A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009058564A2 (fr) 2007-11-01 2009-05-07 Maxygen, Inc. Polypeptide immunosuppresseur et acides nucléiques
FR2924137A1 (fr) * 2007-11-26 2009-05-29 France Etat Ponts Chaussees Structure porteuse beton-bois
WO2019012222A1 (fr) * 2017-07-11 2019-01-17 Cruard Charpente Et Construction Bois Elements de structure en bois et beton et procede de fabrication
CN113490781A (zh) * 2019-02-19 2021-10-08 巴斯夫欧洲公司 用于生产包含混凝土的3d物体片段的3d打印方法
WO2023148056A1 (fr) 2022-02-07 2023-08-10 Sika Technology Ag Procédé de fabrication d'un corps stratifié composé de bois et d'une composition durcissable

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19950356C2 (de) * 1999-10-19 2001-12-06 Siegfried Burglechner Mehrschichtige Bauplatte, sowie Verfahren zu ihrer Herstellung
FR2844536B1 (fr) * 2002-09-16 2005-07-01 Georges Deperraz Liaison interface entre beton et bois ou metal
DE102004049423A1 (de) * 2004-10-08 2006-04-13 Wolfgang Braungardt Verfahren zur Herstellung eines Gebäudes
ITCO20050010A1 (it) * 2005-03-14 2006-09-15 Giovanni Cenci Procedimento applicabile sia per la produzione in stabilimento sia per la costruzione in opera di elementi strutturali compositi ottenuti dall'unione incollata del legno o dei suoi derivati con il calcestruzzo allo stato di impasto fresco
JP2007146574A (ja) * 2005-11-30 2007-06-14 Noda Corp 基板およびこれを使用した建築用板
JP2007177453A (ja) * 2005-12-27 2007-07-12 Noda Corp 建築用板
EP1987209A4 (fr) * 2006-02-10 2012-10-03 Combino As Elements / dalles bases sur des elements en bois massif renforces par du beton
DE102016001183A1 (de) * 2016-02-03 2016-03-31 Lignotrend Gmbh & Co. Kg Als Holz-Beton-Verbund ausgebildetes Bauelement sowie Verfahren zu dessen Herstellung
DE102016001185A1 (de) * 2016-02-03 2017-08-03 Lignotrend Gmbh & Co. Kg Als Holz-Beton-Verbund ausgebildetes Bauelement sowie Verfahren zu dessen Herstellung
AT518958A1 (de) 2016-07-15 2018-02-15 Holzforschung Austria Oesterreichische Ges Fuer Holzforschung Holz-Beton-Verbundelement
DE102018000750A1 (de) * 2018-01-31 2019-08-01 Jürgen Übersohn Gebrauchsgegenstand, umfassend wenigstens ein Betonteil und ein Element aus einem durchsichtigen oder durchscheinenden Verbindungsstoff
CA3238622A1 (fr) * 2021-11-30 2023-06-08 Urs Burckhardt Procede de production d'un stratifie en bois et compositions cimentaires

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE546445C (de) * 1932-03-12 Otto Schaub Holzbetonverbundkoerper
CH243281A (de) * 1944-04-03 1946-07-15 Wernink S Beton Mij Nv Bauelement und Verfahren zur Herstellung desselben.
EP0060615A1 (fr) * 1981-02-04 1982-09-22 David Grice Panneaux de revêtement
FR2510163A1 (fr) * 1981-07-22 1983-01-28 Renofors France Procede de renforcement d'une poutre en bois
US4470357A (en) * 1983-01-17 1984-09-11 Caesar Sanzaro Laminated panels for vault construction
EP0191411A2 (fr) * 1985-02-13 1986-08-20 Henkel Kommanditgesellschaft auf Aktien Procédé pour l'isolation sonore d'éléments en béton et élément en béton pourvu d'une isolation sonore
CH658091A5 (en) * 1984-07-17 1986-10-15 Planchers Kaiser S A Prefabricated construction element for the construction of floors, terraces or roofs
US4662972A (en) * 1984-02-16 1987-05-05 Thompson Thomas L Method of forming a non-skid surfaced structure
FR2589777A1 (fr) * 1985-01-23 1987-05-15 Zonca Radiano Materiau nouveau a base de granulats de bois et de resine polyurethane et procede de fabrication d'elements prefabriques et objets moules pour l'industrie du batiment, du meuble, de la construction navale.
EP0432484A2 (fr) 1989-11-16 1991-06-19 SFS Handels Holding AG Elément de connexion
EP0768438A1 (fr) * 1995-10-13 1997-04-16 Daniel Gauthier Bande de tÔle formant liaison entre éléments de construction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7607419A (nl) * 1975-07-07 1977-01-11 Omholt Ray Veerkrachtig gekussend houten vloersysteem, waarop hechtmiddel is aangebracht en waarvan de groei beperkt is en werkwijze voor het installeren daarvan.
DE2810180C2 (de) * 1978-03-09 1985-02-14 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung eines brandschützenden, geschäumten Materials sowie daraus hergestellter Beschichtungen, Isolierungen, Kabelabschottungen, Dämmschutzschichten, Platten, Formkörpern sowie anderer daraus geformter Gegenstände auf der Basis von Magnesiazement
US4670079A (en) * 1982-11-26 1987-06-02 Thompson Thomas L Method of forming a walking-surface panel
DE3317193A1 (de) * 1983-05-11 1984-11-15 Georg Börner Chemisches Werk für Dach- und Bautenschutz GmbH & Co KG, 6430 Bad Hersfeld Verwendung eines expandierenden polyurethanklebstoffes zum verbinden von daemmstoffen mit gebaeudeteilen
DE4421623A1 (de) * 1994-06-21 1996-01-04 Thera Ges Fuer Patente Mehrkomponentige, kationisch härtende Epoxidmassen und deren Verwendung sowie Verfahren zur Herstellung gehärteter Massen

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE546445C (de) * 1932-03-12 Otto Schaub Holzbetonverbundkoerper
CH243281A (de) * 1944-04-03 1946-07-15 Wernink S Beton Mij Nv Bauelement und Verfahren zur Herstellung desselben.
EP0060615A1 (fr) * 1981-02-04 1982-09-22 David Grice Panneaux de revêtement
FR2510163A1 (fr) * 1981-07-22 1983-01-28 Renofors France Procede de renforcement d'une poutre en bois
US4470357A (en) * 1983-01-17 1984-09-11 Caesar Sanzaro Laminated panels for vault construction
US4662972A (en) * 1984-02-16 1987-05-05 Thompson Thomas L Method of forming a non-skid surfaced structure
CH658091A5 (en) * 1984-07-17 1986-10-15 Planchers Kaiser S A Prefabricated construction element for the construction of floors, terraces or roofs
FR2589777A1 (fr) * 1985-01-23 1987-05-15 Zonca Radiano Materiau nouveau a base de granulats de bois et de resine polyurethane et procede de fabrication d'elements prefabriques et objets moules pour l'industrie du batiment, du meuble, de la construction navale.
EP0191411A2 (fr) * 1985-02-13 1986-08-20 Henkel Kommanditgesellschaft auf Aktien Procédé pour l'isolation sonore d'éléments en béton et élément en béton pourvu d'une isolation sonore
EP0432484A2 (fr) 1989-11-16 1991-06-19 SFS Handels Holding AG Elément de connexion
EP0768438A1 (fr) * 1995-10-13 1997-04-16 Daniel Gauthier Bande de tÔle formant liaison entre éléments de construction

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009058564A2 (fr) 2007-11-01 2009-05-07 Maxygen, Inc. Polypeptide immunosuppresseur et acides nucléiques
EP2385065A1 (fr) 2007-11-01 2011-11-09 Perseid Therapeutics LLC Polypeptides immunosuppresseurs et acides nucléiques
EP2612868A1 (fr) 2007-11-01 2013-07-10 Perseid Therapeutics LLC Acides nucléiques et polypeptides immunosuppresseurs
EP2612867A1 (fr) 2007-11-01 2013-07-10 Perseid Therapeutics LLC Acides nucléiques et polypeptides immunosuppresseurs
FR2924137A1 (fr) * 2007-11-26 2009-05-29 France Etat Ponts Chaussees Structure porteuse beton-bois
WO2009071832A2 (fr) * 2007-11-26 2009-06-11 Laboratoire Central Des Ponts Et Chaussees Structure porteuse beton-bois.
WO2009071832A3 (fr) * 2007-11-26 2009-08-20 France Etat Ponts Chaussees Structure porteuse beton-bois.
WO2019012222A1 (fr) * 2017-07-11 2019-01-17 Cruard Charpente Et Construction Bois Elements de structure en bois et beton et procede de fabrication
FR3068997A1 (fr) * 2017-07-11 2019-01-18 Cruard Charpente Et Construction Bois Elements de structure en bois et beton et procede de fabrication
CN113490781A (zh) * 2019-02-19 2021-10-08 巴斯夫欧洲公司 用于生产包含混凝土的3d物体片段的3d打印方法
CN113490781B (zh) * 2019-02-19 2024-01-02 巴斯夫欧洲公司 用于生产包含混凝土的3d物体片段的3d打印方法
WO2023148056A1 (fr) 2022-02-07 2023-08-10 Sika Technology Ag Procédé de fabrication d'un corps stratifié composé de bois et d'une composition durcissable

Also Published As

Publication number Publication date
CA2295561A1 (fr) 1999-01-21
DE19729058A1 (de) 1999-01-14
EP0994990A1 (fr) 2000-04-26
JP2002511910A (ja) 2002-04-16

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